Ekonomia.

Volunteering and wages / Dominik Buttler. The possibilities of realizing by Polish gminas the measuers for employment increase within the programmes financed by EU funds in the financial perspective for the years 2007-2013 / Marcin Flieger. Local Agenda 21 and introducing the concept of sustainable development in communes of Kujawsko-Pomorska province / Klaudia Kozłowska. - Poznań, 2008.

Wydział Ekonomii Akademii Ekonomicznej w Poznaniu, 09.08.11 http://www.ue.poznan.pl/

Kp. Project management as a spectrum of scientific problems in engineering and management / ed. by Dariusz Skorupka, Marcin Flieger. - Wrocław, 2015.

OPI online